About Diesel Service & Supply

Diesel Service & Supply has been buying, servicing, and selling new, surplus, and used industrial diesel engines and electric power generators for over 30 years. When you work with us, not only can you rest assured that you will always get a competitive price for your equipment, but you'll also be dealing with a professional organization backed by years of experience and the infrastructure to support it. As one of the nation's leaders in industrial generator sales, we pride ourselves on our reputation for selling only low-hour, high quality equipment, and selling what we own. We do not broker other dealer’s inventory.

Products Offered

Our primary focus is on large engines and diesel powered generators from 50kW to 3 Megawatts. We specialize in Caterpillar, Cummins, and Detroit sales and service, but also carry a wide range of other manufacturers such as Onan, Kohler, Allis Chalmers, Perkins, SDMO, Generac, and more, all viewable with our up-to-date Inventory of Generators. In addition to diesel products, we also buy and sell other types of generator sets, including natural gas, propane, and electric. We do not offer small home or rv generators. In addition to gensets, we also supply a wide range of automatic transfer switches, power units, trailers, and generator enclosures. Use the menu on the left to navigate our inventory categories.

Company History

Diesel Service & Supply was established in January of 1981 and has grown from a small 1,250 square foot one-man business, to a 14 acre industrial complex. We have full machine shop capabilities, overhead bridge cranes, a full service multi-port garage, an experienced staff of the industry's top mechanics and technicians, the best testing equipment and de-installation tools money can buy, and a friendly and knowledgeable office staff that can assist you with all your industrial diesel and power generation needs.

In March of 2011, Diesel Service & Supply officially became a division of Generator Source, LLLP. The original owner and founder is once again managing day to day operations and more involved than ever. We are proud to be back in full swing providing quality generators and dedicated customer support the Diesel Service & Supply brand has long been known for.

Knowledgeable and Experienced Staff

Our staff of experienced professionals includes electricians, riggers, de-installers and field mechanics to handle service, de-installations, in-house load bank and dyno testing. The staff has been responsible for the professional de-installation of countless generators throughout the United States and Canada, with multiple units up to 20 megawatts.

Our Customers and Growth

Sprint, Qwest, Wal-Mart, Office Depot, CITGO, Halliburton, Clear Channel Communications, and Denver International Airport are just a small sampling of our most satisfied customers. Our advancement and unprecedented growth in this highly competitive arena is attributed to seeking and providing complete customer satisfaction with professionalism, ethical standards, and excellence of product knowledge.

Member of Electrical Generating Systems Association (EGSA)
As a leading supplier of used and suprlus power generators, Diesel Service & Supply is a member of the Electrical Generating Systems Association. The association offers us the latest technician training to aid in delivering high-quality generators as well as other activities including trade shows, industry standard specifications, continuing education, and much more.

To get more information, search our updated Inventory, call us at 855-657-7600, or Contact Us online to find out how we can help meet your company's requirements today!

Diesel Service and Supply 1999-2016. All rights reserved. Location in Brighton, Colorado. 303-659-2073.
We buy, sell and ship worldwide! Caterpillar, Cummins, Kohler, Detroit, Generac and all other brand
names are trademakrs or their individual respective companies.